Camera capable of communicating with other communication device

A cellular phone capable of telephone-calling with an external device, the cellular phone comprising:

• an antenna by which the cellular phone communicates with the external device;
• a lens;
• an image sensor that outputs an image signal from an image formed on the image sensor by the lens;
• a display;
• a loudspeaker;
• and
• a processer electrically connected to the antenna, the image sensor, the display and the loudspeaker, wherein:
• the processor controls the display to display an announcement of an incoming call from the external device after receiving a calling signal via the antenna, and
• in a case that the calling signal is received during operation of the image sensor, the processor permits communication between the cellular phone and the external device via the antenna and using the loudspeaker and a microphone of the cellular phone after the announcement of the incoming call is displayed by the display and after the processor receives an instruction from an input device of the cellular phone to allow starting of the telephone-calling with the external device.